Joel B kindly leant me a pair of Stax headphones when my 135s were sick. The energiser unit has phono connectors, and they are happy to run off the preamp tape outputs. A standard tape lead such as the ones available from Chord would enable connection. I just plugged the energiser direct from my CD player (my preamp was out being recapped) and they sounded great.
Stax are fantastic headphones, they are fast, open and clear, though if I remember correctly Joel found them to sound a bit off at higher volumes (I listen to music quite quietly so heard no problems). The downside is that they are really quite uncomfortable and heavy, and make weird creaking noises when you move your head. I have been very impressed with the wooden Grado headphones, I suspect I would prefer them, though they are expensive, and need some form of decent headphone amp.
Tony.
